Wear is a process that occurs on the surface of the workpiece, so it is very important to strengthen the surface of the workpiece. The surface strengthening technology of steel has a long history. For example, the carburizing technology can be traced back to the Han Dynasty in China at least two or more years ago, and the carbonitriding process has been recorded in Chinese history books more than a thousand years ago. In recent decades, various surface strengthening technologies and equipment have developed rapidly. Taking necessary surface strengthening and surface modification measures can not only save a lot of raw materials, but also give the workpiece surface layer a variety of special, as a whole The structure and performance of materials that are difficult to obtain, so as to obtain the most excellent wear resistance and huge economic benefits. Today, surface strengthening technology has become an important development direction in the research and application of wear-resistant steel (including wear-resistant materials).
